How to calculate the maximum concurrent users of a website per month in Google Analytics?
Here is an article that has a solution for this: Checking Monthly Visits and Concurrent Users with Google Analytics
- Viewing the Audience Overview report for the month in which you are interested.
- Switching from "daily" to "hourly" stats at the top right
- Using the graph to identify which hour has the highest traffic and record the number of visitors for that hour
- Get the average time on site (in seconds) by changing the metric on the graph to "average time"
Plug those numbers into the formula:
Concurrent Visitors = Hourly visitors * Time Spent on Site / 3600